<template>
  <div class="users">
    <!-- 卡片视图区域 -->
    <el-card class="box-card">
      <el-row :gutter="20">
        <el-col :span="8">
           <!-- 搜索与添加区域 -->
          <el-input placeholder="请输入内容" v-model="queryInfo.query" @clear="getUserList" clearable>
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table
        style="width: 100%"
        :data="userList"
        stripe
        border>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="用户名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <!-- 接收当前行的数据 -->
          <template v-slot="scope">
            <el-switch v-model="scope.row.mg_state" @change="handleStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template v-slot="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" size="mini" icon="el-icon-edit" @click="showEditDialog(scope)"></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" size="mini" icon="el-icon-delete" @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" size="mini" icon="el-icon-setting"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      @close="closeAddForm"
      width="50%">
      <!-- 内容主体区域 -->
      <el-form ref="addFormRef" :model="addForm" :rules="addFormRules" label-width="70px">
        <el-form-item label="用户名" prop="username"><el-input v-model="addForm.username"></el-input></el-form-item>
        <el-form-item label="密码" prop="password"><el-input v-model="addForm.password"></el-input></el-form-item>
        <el-form-item label="邮箱" prop="email"><el-input v-model="addForm.email"></el-input></el-form-item>
        <el-form-item label="手机" prop="mobile"><el-input v-model="addForm.mobile"></el-input></el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addNewUser = false">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户的对话框 -->
    <el-dialog
      title="修改用户信息"
      :visible.sync="editDialogVisible"
      @close="closeEditForm"
      width="50%">
      <!-- 内容主体区域 -->
      <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
        <el-form-item label="用户名"><el-input v-model="editForm.username" disabled></el-input></el-form-item>
        <el-form-item label="邮箱" prop="email"><el-input v-model="editForm.email"></el-input></el-form-item>
        <el-form-item label="手机" prop="mobile"><el-input v-model="editForm.mobile"></el-input></el-form-item>
      </el-form>
      <!-- 底部区域 -->
     <span slot="footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      if (!value) {
        return cb(new Error('邮箱不能为空')) // 必须新建一个Error对象
      }
      const emailReg = /^\w+((-\w+)|(\.\w+))*@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/
      if (emailReg.test(value)) {
        return cb()
      }
      cb(new Error('邮箱格式不正确'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      if (!value) {
        return cb(new Error('手机号不能为空')) // 必须新建一个Error对象
      }
      const phoneReg = (11 && /^((13|14|15|16|17|18|19)[0-9]{1}\d{8})$/)
      if (phoneReg.test(value)) {
        return cb()
      }
      cb(new Error('请输入正确的手机号'))
    }
    return {
      // 获取用户列表的对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 控制修改用户对话框的显示与隐藏
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10个字符之间', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码的长度在6~15个字符之间', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
          // {
          //   type: 'string',
          //   message: '邮箱格式不正确',
          //   trigger: 'blur',
          //   transform (value) {
          //     if (!/^\w+((-\w+)|(\.\w+))*@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/.test(value)) {
          //       return true
          //     }
          //   }
          // }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editForm: {
        id: 1,
        username: '',
        email: '',
        mobile: ''
      },
      editFormRules: {
        email: [
          // { required: true, message: '邮箱不能为空', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          // { required: true, message: '手机不能为空', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.userList = res.data.users
      this.total = res.data.total
      console.log(this.userList)
    },
    // 监听 pagesize 改变的事件
    handleSizeChange (pageSize) {
      console.log(pageSize)
      this.queryInfo.pagesize = pageSize
      this.getUserList()
    },
    // 监听 当前页 改变的事件
    handleCurrentChange (currentPage) {
      this.queryInfo.pagenum = currentPage
      this.getUserList()
    },
    // 监听 switch 开关状态的改变
    async handleStateChange (userItem) {
      const { data: res } = await this.$http.put(`users/${userItem.id}/state/${userItem.mg_state}`)
      if (res.meta.status !== 200) {
        userItem.mg_state = !userItem.mg_state
        return this.$message.error(res.meta.msg)
      }
      this.$message.success(res.meta.msg)
    },
    // 监听添加用户对话框的关闭事件
    closeAddForm () {
      this.$refs.addFormRef.resetFields()
    },
    // 监听修改用户对话框的关闭事件
    closeEditForm () {
      this.$refs.editFormRef.resetFields()
    },
    // 点击按钮 添加新用户
    addNewUser () {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return this.$message.error('表单验证有误')
        // 可以发起添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error(res.meta.msg)
        this.$message.success(res.meta.msg)
        // 隐藏添加用户对话框
        this.addDialogVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 展示编辑用户的对话框
    showEditDialog (item) {
      this.editDialogVisible = true
      console.log(item.row)
      this.editForm.id = item.row.id
      this.editForm.username = item.row.username
      this.editForm.email = item.row.email
      this.editForm.mobile = item.row.mobile
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return this.$message.error('格式错误')
        // 发起修改用户信息的数据请求
        const { data: res } = await this.$http.put(`users/${this.editForm.id}`,
          { email: this.editForm.email, mobile: this.editForm.mobile } // 直接this.editForm也可
        )
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.$message.success(res.meta.msg)
        this.editDialogVisible = false
        this.getUserList()
      })
    },
    // 根据id删除相对应的用户信息
    removeUserById (id) {
      // 弹框询问用户是否确定删除
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async () => {
        const { data: res } = await this.$http.delete('users/' + id)
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.getUserList()
        this.$message({
          type: 'success',
          message: '删除成功!'
        })
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    }
  },
  mounted () {
    this.getUserList()
  }
}
</script>

<style lang="less" scoped>
.users {
  height: 95%;
}
.el-card {
  position: relative;
  height: 100%;
  .el-card__body {
    height: 100%;
  }
  .el-row {
    margin-bottom: 15px;
  }
  .el-table {
    max-height: 20%;
    font-size: 14px;
  }
  .el-pagination {
    position: absolute;
    bottom: 20px;
  }
}
.el-card.is-always-shadow {
  box-shadow: 0 1px 1px rgba(0, 0, 0, .15);
}
</style>
